ZIP Code 64423 — Barnard, MO
64423 is a standard (street delivery) ZIP code serving Barnard, Missouri, in Nodaway County. To mail something here you only need these five digits — but the four-digit extension narrows delivery to a single point, and it is what USPS bulk postage discounts are priced on.
ZIP code 64423 at a glance
| ZIP code | 64423 |
|---|---|
| Primary city | Barnard |
| State | Missouri (MO) |
| County | Nodaway FIPS 29147 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 777 |
| Coordinates | 40.186950, -94.855200 |
How ZIP+4 works in 64423
The four digits after the hyphen encode a delivery segment inside 64423. In practice one segment usually means:
- One side of one block — odd numbers on a street between two cross streets
- A single large building, or one floor of it
- A group of PO boxes, sometimes a single box
- A single business that receives enough mail to warrant its own code
That is why 64423 has no single ZIP+4: two neighbors across the street from each other usually have different ones. Enter a street address above and we will return the exact nine-digit code along with the standardized USPS address format.
Nearby ZIP codes
Showing the closest twelve. See every ZIP code within 25 miles of 64423.
| ZIP | City | Distance |
|---|---|---|
| 64427 | Bolckow, MO | 5.5 mi |
| 64455 | Graham, MO | 7.9 mi |
| 64434 | Conception Junction, MO | 8 mi |
| 64457 | Guilford, MO | 9.2 mi |
| 64433 | Conception, MO | 9.9 mi |
| 64483 | Rosendale, MO | 10 mi |
| 64468 | Maryville, MO | 10.8 mi |
| 64432 | Clyde, MO | 11.5 mi |
| 64480 | Rea, MO | 11.6 mi |
| 64449 | Fillmore, MO | 11.9 mi |
| 64466 | Maitland, MO | 13.3 mi |
| 64479 | Ravenwood, MO | 14.9 mi |
Questions about 64423
What is the ZIP+4 code for 64423?
64423 is the five-digit ZIP code. The ZIP+4 adds four more digits that identify a specific delivery point — usually one side of a city block, a single building, or a group of PO boxes. Because those four digits change from address to address within 64423, you need to look up a specific street address to get them.
What city is 64423?
64423 is assigned to Barnard, Missouri, in Nodaway County.
Do I need to use the ZIP+4?
It is optional for ordinary mail, but it speeds up sorting and it is required for most USPS bulk-mail postage discounts. Many address-verification and e-commerce systems also use ZIP+4 to confirm a delivery point exists.
Need thousands of these?
Upload a CSV and get ZIP+4, county, carrier route, and delivery-point data appended to every row — or call the API directly.